摘要
传统的基坑水平位移监测方法基本是采用小角度观测。在城市建设基坑施工中,由于受场地影响较大,导致监测困难、工作量大,并且很难保证监测精度。运用极坐标监测方法进行基坑水平位移监测,采用检查点控制监测中出现的粗差来提高监测精度,建立平行于基坑的自由坐标系来减少计算工作量和消除多元误差积累。该方法可为类似项目借鉴和应用。
The traditional method of foundation pit horizontal displacement monitoring is basically using small angle observation.In the construction of urban construction foundation pit,due to the greater impact of the site,it results in monitoring difficulties,heavy workload.And it is difficult to ensure the accuracy of monitoring.The foundation pit horizontal displacement monitoring using polar coordinate monitoring method,it improves the monitoring accuracy by the checkpoint control gross error occurred in monitoring,establishes free-coordinate system to reduce the amount of calculation and eliminate multiple error accumulation.This method is beneficial to the similar projects for reference and application.
作者
徐爱华
鞠大为
XU Aihua;JU Dawei(Geophysical Exploration of Hubei Geological Bureau,Wuhan,Hubei430056)
出处
《资源环境与工程》
2017年第6期789-790,794,共3页
Resources Environment & Engineering
关键词
工程测量
极坐标法
基坑支护
engineering survey
polar coodinate method
foundation pit support